Solar-assisted dual chamber microbial fuel cell with a CuInS2photocathode

RSC Advances ◽  
2014 ◽  
Vol 4 (45) ◽  
pp. 23790-23796 ◽  
Author(s):  
Siwen Wang ◽  
Xiaoling Yang ◽  
Yihua Zhu ◽  
Yunhe Su ◽  
Chunzhong Li
Keyword(s):  
Electron Transfer ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Current Density ◽  
Maximum Power ◽  
Maximum Power Density ◽  
Dual Chamber ◽  
A Current

A solar-assisted microbial fuel cell (MFC) was prepared with flower-like CuInS2(CIS) as the photocathode. CIS with flower flakes and monodispersity could be beneficial to electron transfer under irradiation. The solar MFC achieved a maximum power density of 0.108 mW cm−2and a current density of 0.62 mA cm−2.

scholarly journals Energy Harvesting from Sugarcane Bagasse Juice using Yeast Microbial Fuel Cell Technology

REAKTOR ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 52-58
Author(s):  
Marcelinus Christwardana ◽  
Linda Aliffia Yoshi ◽  
J. Joelianingsih
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Sugarcane Bagasse ◽  
Current Density ◽  
Sugar Content ◽  
Maximum Power ◽  
Biofuel Cell ◽  
Maximum Power Density ◽  
Menten Constant

This study demonstrates the feasibility of producing bioelectricity utilizing yeast microbial fuel cell (MFC) technology with sugarcane bagasse juice as a substrate. Yeast Saccharomyces cerevisiae was employed as a bio-catalyst in the production of electrical energy. Sugarcane bagasse juice can be used as a substrate in MFC yeast because of its relatively high sugar content. When yeast was used as a biocatalyst, and Yeast Extract, Peptone, D-Glucose (YPD) Medium was used as a substrate in the MFC in the acclimatization process, current density increased over time to reach 171.43 mA/m2 in closed circuit voltage (CCV), maximum power density (MPD) reached 13.38 mW/m2 after 21 days of the acclimatization process. When using sugarcane bagasse juice as a substrate, MPD reached 6.44 mW/m2 with a sugar concentration of about 5230 ppm. Whereas the sensitivity, maximum current density (Jmax), and apparent Michaelis-Menten constant (𝐾𝑚𝑎𝑝𝑝) from the Michaelis-Menten plot were 0.01474 mA/(m2.ppm), 263.76 mA/m2, and 13594 ppm, respectively. These results indicate that bioelectricity can be produced from sugarcane bagasse juice by Saccharomyces cerevisiae.Keywords: biomass valorization, biofuel cell, acclimatization, maximum power density, Michaelis-Menten constant

scholarly journals Evaluation of an Alkaline Fuel Cell for Multifuel System

2005 ◽  
Vol 2 (4) ◽  
pp. 234-237 ◽  
Author(s):  
A. Verma ◽  
A. K. Jha ◽  
S. Basu
Keyword(s):  
Activated Carbon ◽  
Fuel Cell ◽  
Power Density ◽  
Current Density ◽  
Sodium Borohydride ◽  
Potassium Hydroxide ◽  
Maximum Power ◽  
Carbon Paper ◽  
Maximum Power Density ◽  
Alkaline Fuel Cell

The performance of an alkaline fuel cell (AFC) is investigated using three different fuels, e.g., methanol, ethanol, and sodium borohydride. Pt∕C∕Ni was used as anode, whereas MnO2∕C∕Ni was used as standard (Electro-Chem-Technic, UK) cathode for all the fuels. Fresh mixture of electrolyte, potassium hydroxide (5M), and fuel (2M) was fed to AFC and withdrawn at a rate of 1ml∕min. The anode was prepared by dispersing platinum and activated carbon in Nafion® (DuPont USA) dispersion and placing it onto a carbon paper (Lydall, USA). Finally prepared anode material was pressed onto Ni mesh and sintered to produce the required anode. The maximum power density of 16.5mW∕cm2 is obtained at 28mA∕cm2 of current density for sodium borohydride at 25°C, whereas methanol produces 31.5mW∕cm2 of maximum power density at 44mA∕cm2 of current density at 60°C. The results obtained showed that the AFC could accept multifuels.

Electrical Stress-directed Evolution of Biocatalysts Community Sampled from A Sodic-saline Soil for Microbial Fuel Cells

2012 ◽  
Vol 15 (3) ◽  
pp. 181-186 ◽  
Author(s):  
K. Sathish-Kumar ◽  
Omar Solorza-Feria ◽  
Gerardo Vázquez-Huerta ◽  
J.P. Luna-Arias ◽  
Héctor M. Poggi-Varaldo
Keyword(s):  
Electron Transfer ◽  
Fuel Cell ◽  
Directed Evolution ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Transfer Reaction ◽  
Electron Transfer Reaction ◽  
Maximum Power Density ◽  
Bottom Soil ◽  
Electrical Stress

Anode-respiring bacteria (ARB) perform an unusual form of respiration in which their electron acceptor is a solid anode. The focus of this study was to characterize the electrical stress direct evolution of biocatalysts as a way of enriching the community with ARB for microbial fuel cell. The original microbial consortium was sampled from a sodic-saline bottom soil (Texcoco Lake). Interestingly, iron (III) reducing bacteria consortium in the sodic-saline bottom soil was 8500 ± 15 MPN/100 mL by the most probable number method, since microbial reduction of iron (III) is reported to be associated to anode-respiring capabilities. Cyclic voltammetry studies of electrochemical stressed biofilm-ARB were conducted at 28th and 135th days, and an irreversible electron transfer reaction was found possibly related to electron transfer reaction of the cytochrome. The electrochemical impedance spectroscopy results revealed that the resistance of the biofilm-ARB decreased with time (28th day-11.11 ω and 135th day- 5.5 ω ), possibly associated to the adaptability of electroactive biofilm on the graphite electrode surface. Confocal microscopy showed that the biofilms are active in nature and the biofilm-ARB attained ~40 μ m thickness at the 136th day. Electrical stressed-ARB gave a maximum power density of 79.4mW/m2, and unstressed-ARB gave a maximum power density of 41.0mW/m2 in a single-chamber microbial fuel cell (SCMFC). All these electrochemical experiments and evaluation suggest that the electrical-stress directed evolution of ARB community was associated to a more efficient extracellular electron transfer process in SCMFC.

Submersible microbial fuel cell for electricity production from sewage sludge

2011 ◽  
Vol 64 (1) ◽  
pp. 50-55 ◽  
Author(s):  
Yifeng Zhang ◽  
Lola Gonzalez Olias ◽  
Prawit Kongjan ◽  
Irini Angelidaki
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Sewage Sludge ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Oxygen Demand ◽  
Maximum Power ◽  
Electricity Production ◽  
Maximum Power Density ◽  
Sludge Concentration

A submersible microbial fuel cell (SMFC) was utilized to treat sewage sludge and simultaneously generate electricity. Stable power generation (145 ± 5 mW/m2, 470 Ω) was produced continuously from raw sewage sludge for 5.5 days. The maximum power density reached 190 ± 5 mW/m2. The corresponding total chemical oxygen demand (TCOD) removal efficiency was 78.1 ± 0.2% with initial TCOD of 49.7 g/L. The power generation of SMFC was depended on the sludge concentration, while dilution of the raw sludge resulted in higher power density. The maximum power density was saturated at sludge concentration of 17 g-TCOD/L, where 290 mW/m2 was achieved. When effluents from an anaerobic digester that was fed with raw sludge were used as substrate in the SMFC, a maximum power density of 318 mW/m2, and a final TCOD removal of 71.9 ± 0.2% were achieved. These results have practical implications for development of an effective system to treat sewage sludge and simultaneously recover energy.

scholarly journals Effect of substrate type and concentration on the performance of a double chamber microbial fuel cell

2019 ◽  
Vol 81 (7) ◽  
pp. 1336-1344 ◽  
Author(s):  
Zia Ullah ◽  
Sheikh Zeshan
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Oxygen Demand ◽  
Cod Removal ◽  
Maximum Power ◽  
Maximum Power Density ◽  
Ohmic Losses ◽  
Different Types ◽  
Double Chamber

Abstract The microbial fuel cell (MFC) provides new opportunities for energy generation and wastewater treatment through conversion of organic matter into electricity by electrogenic bacteria. This study investigates the effect of different types and concentrations of substrates on the performance of a double chamber microbial fuel cell (DCMFC). Three mediator-less laboratory-scale DCMFCs were used in this study, which were equipped with graphite electrode and cation exchange membrane. The MFCs were fed with three different types of substrates (glucose, acetate and sucrose) at a chemical oxygen demand (COD) concentration of 1,000 mg/L. The selected substrate (acetate) was studied for three different concentrations of 500, 2,000 and 3,000 mg/L of COD. Results demonstrated that acetate was the best substrate among the three different substrates with maximum power density and COD removal of 91 mW/m2 and 77%, respectively. Concentration of 2,000 mg/L was the best concentration in terms of performance with maximum power density and COD removal of 114 mW/m2 and 79%, respectively. The polarization curve shows that ohmic losses were dominant in DCMFCs established for all three substrates and concentrations.

scholarly journals Evaluation of an Alkaline Fuel Cell for Multi-Fuel System

2004 ◽  
Author(s):  
A. Verma ◽  
A. K. Jha ◽  
S. Basu
Keyword(s):  
Fuel Cell ◽  
Power Density ◽  
Current Density ◽  
Sodium Borohydride ◽  
Potassium Hydroxide ◽  
Maximum Power ◽  
Carbon Paper ◽  
Maximum Power Density ◽  
Alkaline Fuel Cell ◽  
Fuel System

The performance of an alkaline fuel cell is investigated using three different fuels, e g., methanol, ethanol and sodium borohydride. Pt/C/Ni was used as anode whereas Mn/C/Ni was used as standard (Electro-Chem-Technic, UK) cathode for all the fuels. Thus, the alkaline fuel cell is used for multi-fuel system. Fresh mixture of electrolyte, potassium hydroxide (5M), and fuel (2M) was fed to and withdrawn from the AFC at a rate of 1 ml/min. The anode was prepared by dispersing platinum and activated carbon in Nafion® (DuPont USA) dispersion and placing it onto a carbon paper (Lydall, USA). Finally prepared anode sheet was pressed onto Ni mesh and sintered to produce the required anode. The maximum power density of 16.5 mW/cm2 is obtained at 28 mA/cm2 of current density for sodium borohydride at 25 °C. Whereas, methanol produces 31.5 mW/cm2 of maximum power density at 44 mA/cm2 of current density at 60 °C.

Nitrifying biocathode enables effective electricity generation and sustainable wastewater treatment with microbial fuel cell

2009 ◽  
Vol 59 (9) ◽  
pp. 1803-1808 ◽  
Author(s):  
Hung-Thuan Tran ◽  
Dae-Hee Kim ◽  
Se-Jin Oh ◽  
Kashif Rasool ◽  
Doo-Hyun Park ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Treatment Plant ◽  
Cell Voltage ◽  
Maximum Power ◽  
Maximum Power Density ◽  
Organics Removal ◽  
Sustainable Wastewater Treatment

Simultaneous organics removal and nitrification using a novel nitrifying biocathode microbial fuel cell (MFC) reactor were investigated in this study. Remarkably, the introduction of nitrifying biomass into the cathode chamber caused higher voltage outputs than that of MFC operated with the abiotic cathode. Results showed the maximum power density increased 18% when cathode was run under the biotic condition and fed by nitrifying medium with alkalinity/NH4+-N ratio of 8 (26 against 22 mW/m2). The voltage output was not differentiated when NH4+-N concentration was increased from 50 to 100 mg/L under such alkalinity/NH4+-N ratio. However, interestingly, the cell voltage rose significantly when the alkalinity/NH4+-N ratio was decreased to 6. Consequently, the maximum power density increased 68% in compared with the abiotic cathode MFC (37 against 22 mW/m2). Polarization curves demonstrated that both activation and concentration losses were lowered during the period of nitrifying biocathode operation. Ammonium was totally nitrified and mostly converted to nitrate in all cases of the biotic cathode conditions. High COD removal efficiency (98%) was achieved. In light of the results presented here, the application of nitrifying biocathode is not only able to integrate the nitrogen and carbon removal but also to enhance the power generation in MFC system. Our system can be suggested to open up a new feasible way for upgrading and retrofitting the existing wastewater treatment plant by the use of MFC-based technologies.

scholarly journals Performance of the Salt Bridge Based Microbial Fuel Cell

2012 ◽  
Vol 1 (2) ◽  
pp. 115 ◽  
Author(s):  
Maksudur R. Khan ◽  
Ripon Bhattacharjee ◽  
M. S. A. Amin
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Salt Bridge ◽  
Operating Conditions ◽  
Maximum Power ◽  
Optimum Operating ◽  
Organic Substrates ◽  
Maximum Power Density ◽  
Density Maximum

Electricity generation from readily biodegradable organic substrates accompanied by decolorization of azo dye was investigated using a Microbial fuel cell (MFC). Biodegradation was the dominant mechanism of the dye removal, and glucose was the optimal substrate for Red Cibacron-2G (RC) decolorization. Batch experiments were conducted to evaluate the performance of the MFC. As compared to traditional anaerobic technology higher decolorization efficiency was achieved by MFC. Effect of initial dye concentration and external resistance on power generation were studied. Polarization experiments were also directed to find the maximum power density. Maximum Power density of 100mW/m2 (1.04A/m2) was recorded at optimum operating conditions.

Continuous Electricity Generation and Pollutant Removal from Swine Wastewater Using a Single-Chambered Air-Cathode Microbial Fuel Cell

2014 ◽  
Vol 953-954 ◽  
pp. 158-162 ◽  
Author(s):  
Chiu Yu Cheng ◽  
Cheng Che Li ◽  
Ying Chien Chung
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Power Density ◽  
Electricity Generation ◽  
Large Scale ◽  
Pollutant Removal ◽  
Maximum Power ◽  
Swine Wastewater ◽  
Limiting Factor ◽  
Maximum Power Density

Microbial fuel cell (MFC) represents a new method for simultaneously swine wastewater treatment and electricity generation. However, few studies revealed the high electricity generation and pollutant removal using a large-scale single-chambered MFC in treating swine wastewater. Results indicated optimal hydraulic retention time (HRT) of swine wastewater was 8 d considering the removal efficiency and the power density. Under this condition, this MFC system removed 85.62% TCOD and 73.6% NH3 as well as achieved power density of 368 mW/m2. Results also showed the maximum power density of the MFC was 382.5±10.6 mW/m2 MFC at 350 Ω. TCOD concentration in the swine wastewater was limiting factor for power output. The maximum power density was Pmax= 385 mW/m2, with a half-saturation concentration of Ks=2,050 mg/l. To our knowledge, this is the first time to demonstrate the electricity characteristics of a large-scale single-chambered MFC in treating swine wastewater.

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